Netgear SRX5308 Specifications Page 59

  • Download
  • Add to my manuals
  • Print
  • Page
    / 357
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 58
LAN Configuration
59
ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308
DNS Proxy
When the DNS Proxy option is enabled for a VLAN, the VPN firewall acts as a proxy for all
DNS requests and communicates with the ISP’s DNS servers (as configured on the WAN ISP
Settings screens). All DHCP clients receive the primary and secondary DNS IP addresses
along with the IP address where the DNS proxy is located (that is, the VPN firewall’s LAN IP
address). When the DNS Proxy option is disabled for a VLAN, all DHCP clients receive the
DNS IP addresses of the ISP but without the DNS proxy IP address. A DNS proxy is
particularly useful in auto-rollover mode. For example, if the DNS servers for each WAN
connection are different servers, then a link failure might render the DNS servers
inaccessible. However, when the DNS Proxy option is enabled, the DHCP clients can make
requests to the VPN firewall, which, in turn, can send those requests to the DNS servers of
the active WAN connection. However, disable the DNS proxy if you are using a dual-WAN
configuration in auto-rollover mode with route diversity (that is, with two different ISPs) and
you cannot ensure that the DNS server is available after a rollover has occurred.
LDAP Server
A Lightweight Directory Access Protocol (LDAP) server allows a user to query and modify
directory services that run over TCP/IP. For example, clients can query email addresses,
contact information, and other service information using an LDAP server. For each VLAN,
you can specify an LDAP server and a search base that defines the location in the directory
(that is, the directory tree) from which the LDAP search begins.
Configure a VLAN Profile
For each VLAN on the VPN firewall, you can configure its profile, port membership, LAN
TCP/IP settings, DHCP options, DNS server, and inter-VLAN routing.
To add or edit a VLAN profile:
1. Select Network Configuration > LAN Settings. The LAN submenu tabs display, with
the LAN Setup screen in view. (The following figure shows the default VLAN profile and
another VLAN profile as examples.)
Figure 30.
Page view 58
1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 356 357

Comments to this Manuals

No comments